SHAREHOLDERS' EQUITY - Narrative (Details)			3 Months Ended		6 Months Ended		43 Months Ended
	Feb. 04, 2020 USD ($) sales_agent	Jul. 18, 2011	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2022 USD ($) $ / shares shares	Aug. 31, 2022 USD ($)	Aug. 02, 2022 USD ($)	Aug. 01, 2022 USD ($)	Jul. 28, 2021 USD ($)	May 26, 2021 USD ($)	Mar. 04, 2019 USD ($)
Subsidiary or Equity Method Investee [Line Items]
Right to grant period		10 years
Stock repurchase program, authorized amount								$ 20,000,000			$ 20,000,000
Equity ATM Program
Subsidiary or Equity Method Investee [Line Items]
Maximum consideration threshold	$ 100,000,000								$ 650,000,000	$ 250,000,000		$ 250,000,000	$ 50,000,000
Number of additional sales agents | sales_agent	2
Gross sales commission percentage												1.50%	2.00%
Number of shares issued in transaction (in shares) | shares			1,381,716	1,141,269	3,644,568	2,218,578	11,822,228
Weighted-average price per share (in usd per share) | $ / shares			$ 19.48	$ 26.59	$ 20.21	$ 26.35	$ 21.75
Gross proceeds from issuance of common stock			$ 26,900,000	$ 30,300,000	$ 73,700,000	$ 58,500,000	$ 257,100,000
Net proceeds			26,500,000	$ 29,900,000	72,600,000	$ 57,600,000	252,900,000
Available under the Equity ATM Program			$ 392,900,000		$ 392,900,000		$ 392,900,000
2010 Plan | Restricted Stock
Subsidiary or Equity Method Investee [Line Items]
Right to grant period		10 years